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How to find the duration of difference between two dates in java?
...s 24 hours in length. See the correct answers that use either Joda-Time or java.time libraries.
– Basil Bourque
Jun 5 '14 at 18:24
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Java String array: is there a size of method?
...MsoF The documentation for "[]" (array, not Arrays object) is actually the Java specification. .e.g docs.oracle.com/javase/specs/jls/se7/html/jls-10.html Edit: Ah... the comment is from 2013...
– Acapulco
Jun 15 '15 at 22:42
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How to avoid null checking in Java?
...e (for example, NullPointerException). Assertions are a highly-underused Java feature that was added in 1.4. The syntax is:
assert <condition>
or
assert <condition> : <object>
where <condition> is a boolean expression and <object> is an object whose toString() ...
Methods inside enum in C#
In Java, it's possible to have methods inside an enum.
6 Answers
6
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Java integer to byte array
...
using Java NIO's ByteBuffer is very simple:
byte[] bytes = ByteBuffer.allocate(4).putInt(1695609641).array();
for (byte b : bytes) {
System.out.format("0x%x ", b);
}
output:
0x65 0x10 0xf3 0x29
...
How do I change Eclipse to use spaces instead of tabs?
...
Java Editor
Click Window » Preferences
Expand Java » Code Style
Click Formatter
Click the Edit button
Click the Indentation tab
Under General Settings, set Tab policy to: Spaces only
Click OK ad nauseam to apply the chang...
Java synchronized method lock on object, or method?
... can't do this.
I would suggest you to use AtomicInteger instead:
import java.util.concurrent.atomic.AtomicInteger;
class X {
AtomicInteger a;
AtomicInteger b;
public void addA(){
a.incrementAndGet();
}
public void addB(){
b.incrementAndGet();
}
}
...
Integrating the ZXing library directly into my Android application
...ctory you just extracted
Right-click project folder -> Properties -> Java Build Path -> Library -> Add External JARs...
Navigate to the newly extracted folder and open the core directory and select core.jar ... hit enter!
Now you just have to correct a few errors in the translations an...
I want my android application to be only run in portrait mode?
...tInPeace Yeah, good point. But that's not my idea being wrong, that's just Java not supporting multiple inheritance :)
– Twinone
Jun 16 '14 at 9:00
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Static Block in Java [duplicate]
... Makes the code clearer and less repetitive. The folks that make Java specifications sometimes make things more confusing, but almost always there is a underlying reason to why they did it that way. Stream manipulation, anyone?
– Mindwin
Aug 28 '13 at...